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Thread: New decat pipe for td5, egt sensor

  1. #1
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    New decat pipe for td5, egt sensor

    I've just ordered and received a new decat pipe for my defender td5.
    As I will be putting an egt gauge in soon(in prep for an ecu remap)should I drill/tap/weld the sensor in now, down stream of the turbo ?
    Or do I put the sensor in tne manifold where the EGR used to be ?
    What are the pros and cons of each spot ?
    Ie. Whats more useful and safer

    Sent from my SM-T310 using AULRO mobile app

  2. #2
    Tombie Guest
    Pre-turbo is more accurate representation of temperature.

    Post turbo is an unknown due to heat soak on the turbo

  3. #3
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    The pics below show my preferred location for a Td5 pre-turbo EGT sensor.

    To get the tip of a probe from the EGR plate to somewhere near the manifold outlet/turbo inlet for a representative measurement requires a long unsupported probe, subject to a lot of turbulence and vibration - not good for the probe's electrical longevity.

    Drilling and tapping near the turbo flange means only 15 - 20 mm of probe needs to be inside the manifold wall.

    PM me if you would like some hints on drilling and tapping the manifold.
    Attached Images Attached Images
    Ian &
    Leo - SIII 109/GMH3.3
    Daphne I - '97 Disco 300Tdi Manual
    Daphne II - '03 Disco Td5 Auto

  4. #4
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    I'm thinking that I will probably deweb my manifold when I fit the decat pipe so I guess that would be the best time for drilling and tappping the manifold to reduce the risk of swarf entering the turbo. Any preferences on brands of egt sensors ?

    Sent from my SM-T310 using AULRO mobile app

  5. #5
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    Quote Originally Posted by County4.4 View Post
    Any preferences on brands of egt sensors ?

    Sent from my SM-T310 using AULRO mobile app
    Yes, I have but I can't say. Hopefully someone else will mention my preferred brand...
    Ian &
    Leo - SIII 109/GMH3.3
    Daphne I - '97 Disco 300Tdi Manual
    Daphne II - '03 Disco Td5 Auto

  6. #6
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    I ended up with one of these... no idea if this is a brand of choice, but seems to be well made.
    Still need to install so can't comment on performance.

    EGT Probe - Diesel - Fast Response Motorsports Duty - 1/8" Diameter

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